Disk harrow



lVrarch 11, 195% H. ELLIOTT DISK HARROW Filed June 6', 1947 3Sheets-Sheet l Inventor Hubert Lee Elliott March 11, 1952 H. ELLIOTT2,588,709

' DISK HARROW Filed June 6, 1947 5 Sheets-Sheet 2 Inlllllllllllll'llllllInventor Hubert Lee E/lioff 1 I B 2mm March 11, 1952 H. L; ELLIOTT I 2,

DISK HARROW Filed June 6, 1947 a; sheet s -sheet 3 Inventor Hubprf LeeEl li'off and we I8 I tlomeys Patented Mar. 11, 1952 V UNITED STATESPATENT OFFICE DISK HABROW -Hubert Lee Elliott, Aline, Okla.

Application June 6, 1947, Serial No. 752,977

' 1 Claim.

1 This invention relates to new and useful improvements in diskers andthe primary object of .the present invention is to provide a farmimplement to be used on plowed or unplowed -land to provide smoothfurrows and leave a slight ridge preventing soil erosion therebetween.

Another important object of the present invention is to provide awheeled frame including a beam supportinggangs of discs that areremovablefrom the beam for sharpening or replacement.

' A further object of the present invention is to provide a device ofthe character referred including novel means for raising and loweringthe frame for disposition of the discs to the ground surface. r

A still further aim of the present invention is to provide a disker ofthe character referred to that.,.is simple and practical inconstruction, strong and reliable in use, relatively inexpensive tomanufacture, and otherwise well adapted for v the purposes for which thesame is intended.

Other objects and advantages reside 'in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing hadto the accompanyingdrawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

,l Figure l is a top plan view of the presentinvention;

Figure 2 is a side elevational view of Figure 1;

Figure 3 is a rear elevational view of Figure 1; Figure 4 is a verticallongitudinal sectional view taken on line 44 of Figure 1; p 1

Figure 5 an enlarged fragmentary view showing the manner in which theforward gang 2 brace 46 suitably carried by one of the a beam l8.Removably and pivotally carried by the other end of bar [2' is a secondlongitudinal arcuate brace that is suitably secured to substantially thecenter of beam I8. At one end of beam I8 is a longitudinal side member22 carrying spaced of discs are attached to the beam, with parts of thebeam and discs broken away and shown in section; and,

Figure 6 is an enlarged longitudinal vertical sectional view taken online 6-5 of Figure 1.

Referring now to ,the drawings in detail, Wherein for the purpose ofillustration, there is shown a preferred embodiment of the presentinvention, the numeral 10 represents an elongated bar which is suitablyattached at one end to a tractor or the like (not shown). The other endof the bar I!) is detachably secured to one end of a transverselyextending bar 12. A connecting bar I4 is removably secured at one end tothe bar l0 and the other end of bar 54 is removably and adjustablyconnected to the other end of bar l2.

Pivotally and removably secured to the terminal portion of bar [2 is alongitudinal arcuate parallel horizontal hubs 24 and 26 at its terminalportions. Secured to one end of hub 24 is a brace 28, that is removablycarried by the forward end of brace 20, for bracing side member 22 tothe bar I2. I

Jo'urnaled in hubs 24 and 26 rsepectively ar the crank arms so and 32 ofa pair'of oppositely turned crank axles 34 and 36. The other arms of thecrank axles journally receive a pair of wheels 38 and 40 havingpreferably pneumatic or hard ,rubber tires'42. vPivotally secured tocrank axles 34 and '36 are upstanding handles or levers 44 and 46, eachhaving a pivotal hand grip 48. The hand grips 48 are connected to cars52 projecting outwardly from locking pins 54 by pitmans or rods 50. Pins54 normally project ;downwardly from and are slidably guided by plates56 carried by the levers to engage segmental plates 62 secured to thehubs 24 and 26, due to urging from springs 58. The plates 62 includeupper curved edges having notches 68 therein for selectively receivingthe pin 54.

Coil spring 64 connects the handles to the plates 62 for normallyyieldingly holding the handles at one end of the plates 62. v

Carried at the end of. beam 18 opposite from member 22, is a frame 66supporting a sleeve 68, that receives a vertically adjustable shaft 10.At the lower end of shaft 10 is suitably secured a downwardly inclinedaxle 12 on which is journaled a wheel 14 having a preferably pneumatictire 76. This wheel is'adapted to be tilted at all times due to theinclination of the axle 12, which is at an anglewith shaft 10, the anglepreferably being degrees. Detachably secured at the upper end of shaft10 is a sleeve 18, open at its lower end to fit over the shaft 10.Projecting outwardly from sleeve 78 is a sector plate 80 having notches82 formed in its upper edge. A handle or lever 84 is pivotally securedto plate 80 and handle 84 is pivotally connected by bars 85 to an ear 88projecting outwardly from frame 66.

-A removable coil spring 90 connecting sleeve 18 to beam l8, normallyretains sleeve 18 against sleeve 68.

Pivoted to handle 84 is a hand grip 92 that is connected to a springactuated locking pin 94, by rod 96. Pin 94 is adapted to selectively en-3 gage notches in plate 80, for vertical adjustment of shaft 70, insleeve 68.

As best seen in Figure 1 of the drawings, beam 58 is disposed at anoblique angle with the axis of the wheels, on a plurality of inclinedoutwardly extending parallel spaced arms 88, suitably carried by oneside of said beam.

At the outer ends of arms 08 are journaled bearings I00, adapted toreceive a shaft I02, the axis of which is parallel to the axis of beamIS. A gang of trailing discs I04 are removably carried by shaft I02 torotate with the shaft.

An adjustable clamp member I86 carried by the other side of beam l8,adiustably receives spaced parallel arms I08 which extend outwardly anddownwardly at a slight angle with the beam. At the terminal portions ofarms 38 are sleeves H closed at one end and adapted to removably receivehubs H2 which are journaled in sleeve H0. Set screws H4 carried bysleeves H0 engage a recess H6 in the hub to prevent longitudinalmovement of the hub relative to the sleeve. A gang of leading discs H8are carried by these hubs H 2.

The leading discs I iii are in echelon form preferably at an angle of 17degrees with the line of movement of the device, and the trailing gangof discs I04 are also in echeloned formation at preferably an angle of35 degrees with the line of movement of the said disker.

The leading discs and trailing discs are arranged to work in pairs byinclining the discs of each pair in .an opposite direction, whereby intraveling over the previously plowed ground, a slight ridge is formed toreduce erosion from both wind and rain.

By adjusting handles 44 and 46, it is possible to raise or lower therespective gangs of discs I04 and H8 toward the ground surface.

To prevent vertical twisting of wheel 74 and rotation of shaft 70, thereis provided a hook I20 pivoted as at I22 to beam [8, and adapted toengage an eye [24 carried by axle 12. This hook normally engages an eyeI26 carried by the beam when not in use.

One of the greatest advantages of this implement, is the elimination ofall side draft which usually eifects the efficiency of conventional typewheat land disc plows now in use. The unique arrangement of the leadingdiscs with respect to the trailing discs, namely, the staggeredarrangement of the discs, permits the respective gangs of discs to cutin an opposite direction thus balancing all side draft, resulting in amuch lighter draft than any conventional type disc plow will afford.

Obviously, by reducing the draft, only a small size tractor will benecessary to pull the tractor efliciently over the desired terrain.

The disker thus described is applicable for any type of terrain underall soil conditions without necessary adjustments to the device.

It has been found that when using the disker on an extremely hard or drysoil, the efliciency of the same will be increased with the addition ofa weight box (not shown) supported on the beam. This weight box may beof any suitable type, but it is preferred that the same be of troughform so that the weighted matter may be quickly and readily placedtherein or removed therefrom.

In view of the foregoing description taken in conjunction with theaccompanying drawings it is believed that a clear understanding of thedevice will be quite apparent to those skilled in this art. A moredetailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shownand described a preferred embodiment of the invention the same issusceptible to certain changes fully comprehended by the spirit of theinvention as herein described and the scope of the appended claim.

I claim:

In an agricultural implement including a wheeled frame having a diagonalbeam; a plurality of arms projecting laterally from said beam, bearingscarried by said arms, a shaft journaled for rotation in said bearings, aset of trailing disks carried by said shaft, a plurality of clamp,- ingmembers fixed to said beam and staggered with respect to said arms, barsadjustable longitudinally in said clamping members and inclined to saidbeam, sleeves fixed .to said bars, a plurality of leading disks havinghub portions received in said sleeves, and means carried by said sleevesfor retaining the hub portions relative thereto.

HUBERT LEE ELLIOTT.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 759,782 Ward et a1 May .10, 19041,172,046 Psencik Feb. 15, 1916 1,861,667 Seaholm June 7, 1932 1,892,199Altgelt et al "Dec. 27, 1932 1,898,870 Domries et a1 Feb. 21, 19832,184,438 Scarlett Dec. 26, 1939 2,352,963 McMahon July 1 1944 2,380,328Morkoski July 10, 1945 2,420,437 McMahon May 113, 1947

